I have 2003 S55 65000 miles.I love the look, power and everrything about this car but I had same issue. ABC light came on and dealer told me the pump was broken. I paid $3300 to repair. Also, I had SRS lamp came up. So total was almost $5000. I am surprised that it is their flagship model but it starts to fall apart after only 64K miles. German cars have great engines but they constantly have electrical issues... Hire some Japanese electrical engineer!